IPA: /rɪˈtaɪəd.nəs/
KK: /rɪˈtaɪərd.nəs/
The state of having stopped working, often after reaching a certain age, and enjoying a quieter life away from work responsibilities.
After many years of hard work, she finally embraced her retiredness and enjoyed traveling and spending time with family.
Retiredness is formed from "retired" (from Old French *retirer*, meaning to withdraw) and "-ness" (meaning the state or quality of). The word refers to the state of having withdrawn from one's occupation or active life.
Think of someone who has 'withdrawn' from work ('retired') and is now in a state of 'being' ('-ness'). This helps you remember that 'retiredness' means the state of being retired.